Aeration brick raw material stirring tank prevents depositing double helix stirring structure

Abstract

The utility model belongs to the technical field of stirring device, concretely relates to a kind of anti-settling double-spiral stirring structure of aerated brick raw material stirring tank, including stirring tank body, motor is installed on the top surface of stirring tank body, motor output end surface thread connection stirring shaft, and stirring shaft lower end surface welding bottom support.The utility model, by the cooperation of upper and lower stirring paddles installed on stirring shaft, the "pushing frequency" of material during rotation is improved using the structure of large diameter and small pitch of bottom lower stirring paddle, heavy particles deposited on tank bottom can be stirred up and transported upwards, preventing particles from accumulating on tank bottom, while the upper stirring paddle has a structure of small diameter and large pitch, so that the material transported upwards can overflow from the blades of the upper stirring paddle quickly, spread to the surrounding of the tank and flow back naturally, forming a complete cycle of "bottom pushing up → top diffusion → surrounding backflow", so that heavy particles cannot settle to the bottom again.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing devices, specifically relating to a double-helix mixing structure for preventing sedimentation in an aerated brick raw material mixing tank. Background Technology

[0002] Autoclaved aerated concrete (AAC) blocks, also known as autoclaved aerated concrete blocks, are a lightweight, porous new type of building material. They are primarily made from siliceous materials (such as fly ash and sand) and calcareous materials (such as cement and lime) through processes including batching, mixing, pouring, gas expansion, cutting, and autoclaving. They are characterized by their light weight (generally one-third that of clay bricks), good thermal insulation, excellent sound absorption, and high workability, and are widely used in non-load-bearing walls and other parts of buildings.

[0003] The function of the aerated concrete block raw material mixing device is to precisely measure and thoroughly mix siliceous materials, calcareous materials, gas-generating agents (such as aluminum powder paste), regulators, and water according to production process requirements. This ensures that the various raw materials are evenly dispersed, forming a slurry with suitable fluidity and plasticity. This uniform slurry provides a good foundation for subsequent casting and molding, ensuring that the performance of each part of the aerated concrete block is uniform during the gas expansion and hardening process, avoiding quality problems such as uneven strength and cracking, thereby improving the finished product quality and production efficiency of the aerated concrete blocks.

[0004] The existing mixing devices mostly use paddle or turbine-type mixing blades. The raw materials for aerated concrete blocks contain a large amount of heavy particles such as sand and cement. Paddle or turbine mixing components cannot fully suspend the heavy particles, which can easily lead to sedimentation, resulting in uneven mixing of raw materials and affecting the quality stability of aerated concrete blocks. Utility Model Content

[0005] The purpose of this utility model is to provide a double-helix stirring structure for preventing sedimentation in an aerated brick raw material mixing tank. This aims to solve the problem that the stirring blades of existing stirring devices are mostly paddle or turbine structures. Aerated brick raw materials contain a large number of heavy particles such as sand and cement. Paddle or turbine stirring components are difficult to suspend the heavy particles fully, which easily leads to sedimentation, resulting in uneven mixing of raw materials and affecting the quality stability of aerated bricks.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-spiral stirring structure for an aerated concrete block raw material mixing tank to prevent sedimentation, comprising a mixing tank body, a motor mounted on the top surface of the mixing tank body, a stirring shaft threadedly connected to the output end of the motor, a base welded to the lower end surface of the stirring shaft, a guide strip abutting the top surface of the base, the guide strip being welded to the surface of the stirring shaft, the intersection of the stirring shaft and the guide strip being fitted into a rectangular groove in the inner wall of a lower sleeve, a lower stirring paddle connected to the surface of the lower sleeve, and an inner insert rod connected to the top surface of the lower sleeve. The inner insert rod surface is connected to a limiting insert block, the surface of which is inserted into a guide groove opened in the inner wall of the lower end of the upper sleeve. The upper sleeve surface is connected to an upper stirring paddle, and an annular groove is opened in the upper sleeve surface. A fixing half ring is sleeved on the surface of the annular groove. An outer tube is connected to the inner wall surface of the fixing half ring. The surface of the outer tube is inserted into a circular groove on the surface of the upper sleeve and the stirring shaft. A threaded rod is threadedly connected to the inner wall surface of the outer tube. An adjusting half ring is connected to the other side surface of the threaded rod. The surface of the adjusting half ring is sleeved on the surface of the annular groove. A sealing ring is sleeved in the groove on the surface of the threaded rod.

[0007] As a preferred embodiment of the anti-sedimentation double-spiral stirring structure of the aerated brick raw material mixing tank of this utility model, the guide bar is a rectangular structure, and its shape and size are adapted to the rectangular groove on the inner wall of the lower sleeve, the lower stirring paddle, and the upper sleeve.

[0008] As a preferred embodiment of the anti-sedimentation double-spiral stirring structure of the aerated brick raw material mixing tank of this utility model, the limiting block is a trapezoidal structure, the limiting blocks are distributed in a ring at equal intervals on the surface of the inner rod, and the shape and size of the limiting blocks are adapted to the guide groove.

[0009] As a preferred embodiment of the anti-sedimentation double-spiral stirring structure of the aerated brick raw material mixing tank of this utility model, the fixed semi-ring and the adjusting semi-ring intersect to form an annular structure, the shape and size of which are adapted to the annular groove.

[0010] As a preferred embodiment of the anti-sedimentation double-spiral stirring structure of the aerated brick raw material mixing tank of this utility model, a circular through groove is opened laterally at the intersection of the stirring shaft and the upper sleeve, and its shape and size are adapted to the outer tube.

[0011] As a preferred embodiment of the anti-sedimentation double-spiral stirring structure of the aerated brick raw material mixing tank of this utility model, an annular groove is opened on the surface of the threaded rod near the head, and its shape and size are adapted to the sealing ring.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By coordinating the upper and lower agitators mounted on the agitator shaft, the large diameter and small pitch of the lower agitator increase the "pushing frequency" of the material during rotation, which can stir up heavy particles that have settled to the bottom of the tank and transport them upward, preventing the particles from accumulating at the bottom of the tank. At the same time, the upper agitator has a small diameter and large pitch, which allows the material transported upward to quickly overflow from between the blades of the upper agitator, diffuse around the tank and naturally flow back downward, forming a complete cycle of "bottom pushing up → top diffusion → all-around backflow", preventing heavy particles from settling back to the bottom.

[0014] In addition, the inner rod and the limiting block connected to the lower sleeve facilitate precise docking and stable connection of the upper and lower agitators, making it easy to accurately replace the upper and lower agitators according to the degree of wear during use, thus reducing maintenance costs. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main cross-sectional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the upper and lower stirring paddles of this utility model;

[0019] Figure 4 This is a top sectional view of the upper sleeve and inner insert rod of this utility model.

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram of section A.

[0021] In the diagram: 1. Mixing tank; 2. Motor; 3. Mixing shaft; 4. Base support; 5. Guide bar; 6. Lower sleeve; 7. Lower mixing paddle; 8. Inner rod; 9. Limiting block; 10. Upper sleeve; 11. Guide groove; 12. Upper mixing paddle; 13. Annular groove; 14. Fixed half ring; 15. Outer pipe; 16. Adjusting half ring; 17. Threaded rod; 18. Sealing ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 This utility model provides the following technical solution: a double-spiral stirring structure for preventing sedimentation in an aerated concrete block raw material mixing tank, comprising a mixing tank body 1, a motor 2 mounted on the top surface of the mixing tank body 1, a stirring shaft 3 threadedly connected to the output end of the motor 2, a base support 4 welded to the lower end surface of the stirring shaft 3, a guide strip 5 abutting the top surface of the base support 4, the guide strip 5 being welded to the surface of the stirring shaft 3, the intersection of the stirring shaft 3 and the guide strip 5 being fitted into a rectangular groove in the inner wall of the lower sleeve 6, a lower stirring paddle 7 connected to the surface of the lower sleeve 6, an inner insertion rod 8 connected to the top surface of the lower sleeve 6, a limiting block 9 connected to the surface of the inner insertion rod 8, the limiting block 9 being inserted into a guide groove 11 opened in the lower inner wall of the upper sleeve 10, an upper stirring paddle 12 connected to the surface of the upper sleeve 10, and the upper sleeve 10 being... An annular groove 13 is opened on the surface of the annular groove 13. A fixed half-ring 14 is sleeved on the surface of the annular groove 13. An outer tube 15 is connected to the inner wall surface of the fixed half-ring 14. The surface of the outer tube 15 is inserted into the circular groove on the surface of the upper sleeve 10 and the stirring shaft 3. A threaded rod 17 is threadedly connected to the inner wall surface of the outer tube 15. An adjusting half-ring 16 is connected to the other side surface of the threaded rod 17. The surface of the adjusting half-ring 16 is sleeved on the surface of the annular groove 13. A sealing ring 18 is sleeved in the groove on the surface of the threaded rod 17. In this design, the stirring tank body 1, the motor 2 and the stirring shaft 3 constitute the stainless steel stirring tank body. A large number of related components are set in the stainless steel stirring tank body. Since they are existing technologies and the core content of this technical solution is not related to them, they will not be described in detail in this technical solution.

[0024] The main model of the stainless steel mixing tank in this solution is: CT100L stainless steel mixing tank.

[0025] In use: The stainless steel mixing tank body is driven by motor 2 through reducer to rotate the mixing shaft 3, the lower mixing blade 7 and the upper mixing blade 12. This causes the raw materials such as siliceous materials, fly ash, sand, calcareous materials, cement, lime, gasifying agent, aluminum powder paste and water to generate convection, shearing and diffusion in the mixing tank body 1. This breaks the tendency of material stratification and sedimentation, and achieves uniform mixing. It provides a stable and uniform slurry for subsequent processes such as casting, gas generation and molding of aerated bricks.

[0026] Preferably, the guide bar 5 has a rectangular structure, and its shape and size are adapted to the rectangular grooves on the inner walls of the lower sleeve 6, the lower stirring paddle 7, and the upper sleeve 10.

[0027] In practical use, the guide strip 5 connected to the surface of the stirring shaft 3 allows the lower sleeve 6 to be precisely fitted onto it through the rectangular groove opened on the inner wall. When the lower sleeve 6 is fitted downwards, the bottom support 4 connected to the lower end surface of the stirring shaft 3 supports and limits the lower sleeve 6. Then the upper sleeve 10 repeats the above operation.

[0028] Preferably, the limiting plug 9 has a trapezoidal structure, and the limiting plug 9 is distributed in a ring at equal intervals on the surface of the inner plug rod 8, and the shape and size of the limiting plug 9 are adapted to the guide groove 11.

[0029] In practical use, the limiting plug 9 is connected to each trapezoidal groove on the surface of the guide groove 11, so that the force borne by the lower sleeve 6 and the upper sleeve 10 during rotation is distributed by multiple limiting plugs 9.

[0030] Preferably, the fixed half-ring 14 and the adjusting half-ring 16 intersect to form an annular structure, the shape and size of which are adapted to the annular groove 13.

[0031] In practical use, after the inner rod 8 and the upper sleeve 10 are connected, the outer tube 15 connected to the surface of the fixed half ring 14 is inserted into the circular through groove opened at the intersection of the inner rod 8 and the upper sleeve 10 until the fixed half ring 14 can be fitted onto the surface of the upper sleeve 10. Then, the adjusting half ring 16 is fitted onto the other side of the fixed half ring 14 so that the open ends of the two can abut against each other. Finally, the annular groove opened on the surface of the threaded rod 17 is used to fit and fix the sealing ring 18.

[0032] Preferably, a circular through groove is opened laterally at the intersection of the stirring shaft 3 and the upper sleeve 10, and its shape and size are adapted to the outer tube 15.

[0033] In practical use, after the inner rod 8 and the upper sleeve 10 are connected, the outer tube 15 connected to the surface of the fixed half ring 14 is inserted into the circular through groove opened at the intersection of the inner rod 8 and the upper sleeve 10.

[0034] Preferably, an annular groove is formed on the surface of the threaded rod 17 near the head, and its shape and size are adapted to the sealing ring 18.

[0035] In practical use, the sealing ring 18 is fixed by using the annular groove on the surface of the threaded rod 17, and then the sealing ring 18 is inserted into the circular through groove on the surface of the adjusting half ring 16 until the threaded rod 17 abuts against the end of the inner tube 15. At this time, the sealing ring 18 abuts against the surface of the circular through groove on the surface of the adjusting half ring 16, filling the gap on the surface of the adjusting half ring 16.

[0036] Working principle: When the raw materials for aerated concrete blocks need to be mixed and processed, the guide strip 5 connected to the surface of the stirring shaft 3 allows the lower sleeve 6 to precisely align and fit onto it through the rectangular grooves on its inner wall. As the lower sleeve 6 is lowered, the bottom support 4 connected to the lower end surface of the stirring shaft 3 supports and limits its downward movement. Then, the upper sleeve 10 repeats the above operation, using a set of symmetrical rectangular grooves on its inner wall to fit onto the guide strips 5 on the surface of the stirring shaft 3, thereby moving downwards. The sleeve 10 extends until the guide groove 11 at the bottom of the upper sleeve 10 is fitted onto the surface of the inner rod 8 and the limiting block 9. The limiting block 9 is then engaged with each trapezoidal groove on the surface of the guide groove 11. This allows multiple limiting blocks 9 to distribute the force borne by the lower sleeve 6 and the upper sleeve 10 during rotation, preventing instability in the connection between the lower sleeve 6 and the upper sleeve 10 on the surface of the stirring shaft 3. It also prevents the vibration of the blades of the lower stirring paddle 7 and the upper stirring paddle 12 and the wear of the tank wall of the stirring tank 1 caused by radial deviation during rotation.

[0037] After the inner rod 8 and the upper sleeve 10 are connected, the outer tube 15 connected to the surface of the fixed half-ring 14 is inserted into the circular through groove at the intersection of the inner rod 8 and the upper sleeve 10 until the fixed half-ring 14 can be fitted onto the surface of the upper sleeve 10. Then, the adjusting half-ring 16 is fitted onto the other side of the fixed half-ring 14 so that the open ends of the two can abut against each other. Then, the annular groove on the surface of the threaded rod 17 is used to fit the fixed sealing ring 18. Finally, the sealing ring 18 is inserted into the adjusting half-ring 16. The circular through groove is opened on the surface until the threaded head of the threaded rod 17 is inserted into the threaded groove opened on the surface of the outer tube 15, and the threaded rod 17 is rotated clockwise until the threaded rod 17 abuts against the end of the inner side of the outer tube 15. At this time, the sealing ring 18 abuts against the circular through groove surface of the adjusting half ring 16, filling the gap on the surface of the adjusting half ring 16, thereby fixing the connection between the half ring 14 and the adjusting half ring 16 by using the threaded rod 17, and finally fixing the connection between the lower sleeve 6 and the upper sleeve 10 on the surface of the stirring shaft 3.

[0038] At this point, the stirring shaft 3 can be fixed to the output shaft at the bottom of the motor 2 by using the mounting groove and bolt assembly at the top of the stirring shaft 3.

[0039] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-helix stirring structure for preventing sedimentation in an aerated concrete block raw material mixing tank, comprising a mixing tank body (1), characterized in that: A motor (2) is installed on the top surface of the mixing tank (1). The output end of the motor (2) is threadedly connected to a stirring shaft (3). A base support (4) is welded to the lower end of the stirring shaft (3). The top surface of the base support (4) abuts against a guide strip (5). The surface of the guide strip (5) is welded to the surface of the stirring shaft (3). The intersection of the stirring shaft (3) and the guide strip (5) is fitted into a rectangular groove on the inner wall of the lower sleeve (6). A lower stirring paddle (7) is connected to the surface of the lower sleeve (6). An inner rod (8) is connected to the top surface of the lower sleeve (6). A limiting block (9) is connected to the surface of the inner rod (8). The limiting block (9) is inserted into an opening on the lower inner wall of the upper sleeve (10). Inside the guide groove (11), the surface of the upper sleeve (10) is connected to the stirring paddle (12), the surface of the upper sleeve (10) is opened with an annular groove (13), the surface of the annular groove (13) is fitted with a fixed half ring (14), the inner wall surface of the fixed half ring (14) is connected to an outer tube (15), the surface of the outer tube (15) is inserted into the circular groove on the surface of the upper sleeve (10) and the stirring shaft (3), the inner wall surface of the outer tube (15) is threadedly connected to a threaded rod (17), the other side surface of the threaded rod (17) is connected to an adjusting half ring (16), the surface of the adjusting half ring (16) is fitted onto the surface of the annular groove (13), and a sealing ring (18) is fitted into the groove on the surface of the threaded rod (17).

2. The anti-sedimentation double-helix stirring structure of the aerated brick raw material mixing tank according to claim 1, characterized in that: The guide bar (5) is a rectangular structure, and its shape and size are adapted to the rectangular grooves on the inner walls of the lower sleeve (6), the lower stirring paddle (7), and the upper sleeve (10).

3. The anti-sedimentation double-helix stirring structure of the aerated brick raw material mixing tank according to claim 1, characterized in that: The limiting plug (9) has a trapezoidal structure. The limiting plug (9) is distributed in a ring at equal intervals on the surface of the inner plug rod (8), and the shape and size of the limiting plug (9) are adapted to the guide groove (11).

4. The anti-sedimentation double-helix stirring structure of the aerated brick raw material mixing tank according to claim 1, characterized in that: The fixed half-ring (14) and the adjusting half-ring (16) intersect to form a ring structure, the shape and size of which are adapted to the ring groove (13).

5. The anti-sedimentation double-helix stirring structure of an aerated brick raw material mixing tank according to claim 2, characterized in that: A circular through groove is opened laterally at the intersection of the stirring shaft (3) and the upper sleeve (10), and its shape and size are adapted to the outer tube (15).

6. The anti-sedimentation double-helix stirring structure of the aerated brick raw material mixing tank according to claim 1, characterized in that: The threaded rod (17) has an annular groove on its surface near the head, the shape and size of which are adapted to the sealing ring (18).

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